Automatic Transmission Device

ABSTRACT

An automatic transmission device comprises a flat plate for placing inside a transmission bellhousing a solid surface area that supplies support for both rotating pump gears and completely encloses said gears within the pump housing, and eleven holes, the device configured so that seven of the eleven holes are for pump mounting bolts, three of the eleven holes are for fluid passage and one of the eleven holes is for pump gear operation.

The present invention relates to an Automatic Transmission Device.

BACKGROUND

Steel pump gears break in a 722.9, 722.6, Nag 1, Nag 2 automotive automatic transmission causing damage to a aluminum or magnesium bellhousing on which they rotate.

A prior art supposedly protects a good bellhousing from being damaged. However, because it is weaker in construction, the prior art is not to be used for damaged bellhousings.

Furthermore, the prior art does not provide a complete supporting surface area for both rotating pump gears.

Additionally, prior art does not provide complete enclosure of the pump gears within a pump gear housing to ensure no further damage is possible to a bellhousing.

Presently, there is no solution that allows for the reusing of a damaged bellhousing.

SUMMARY

The present invention seeks to provide a solution to this problem by providing an automatic transmission device, comprising: a flat plate for placing inside a transmission bellhousing; a solid surface area that supplies support for both rotating pump gears and completely encloses said gears within the pump housing; and eleven holes, the device configured so that seven of the eleven holes are for pump mounting bolts, three of the eleven holes are for fluid passage and one of the eleven holes is for pump gear operation.

When the automatic transmission device is inserted into a damaged bellhousing, the device completely covers the damaged surface area providing a smooth solid surface for both rotating pump gears.

Furthermore, the automatic transmission device completely encloses both pump gears within a pump gear housing which insures no further damage to the bellhousing.

The present invention will now be more particularly described, with reference to the accompanying drawings, by way of example only and in no way limiting the scope of the invention, in which:

FIG. 1 is a top view of the prior art with a thin rim and gaps-of-no-support.

FIG. 2 is a top view of the automatic transmission device with large supporting surface area and no gaps.

FIG. 3 is a top view of prior art with inner and outer pump gears on top.

FIG. 4 is a top view of the automatic transmission device with inner and outer pump gears on top.

FIG. 5 is a bottom view of prior art with inner and outer pump gears on the bottom.

FIG. 6 is a bottom view of the automatic transmission device with inner and outer pump gears on the bottom.

FIG. 7 is a complete view of a bellhousing.

FIG. 8 is a view of the middle pocket of a bellhousing in which the automatic transmission device will be placed.

FIG. 9 is a view of the prior art sitting in the pocket of a bellhousing.

FIG. 10 is a view of the automatic transmission device sitting in the pocket of a bellhousing.

FIG. 11 is a bottom view of a pump housing with inner and outer pump gears inside.

FIG. 12 is a bottom view of a pump housing with inner and outer pump gears inside and the automatic transmission device about to be placed on top.

FIG. 13 is a view of a bellhousing pocket, automatic transmission device, inner and outer pump gears and pump housing being assembled.

FIG. 14 is a top view of a pump housing sitting inside a bellhousing pocket.

DETAILED DESCRIPTIONS

Referring to the drawings, there is shown an automatic transmission device 10, comprising: a flat plate 11 for placing inside a transmission bellhousing 24; a solid surface area 13 that supplies support for both rotating pump gears 20, 22 and completely encloses said gears 20, 22 within the pump housing 28; and eleven holes 12,14,16,18, the device configured so that seven of the eleven holes 12 are for pump mounting bolts, three of the eleven holes 16, 14 are for fluid passage and one of the eleven holes 18 is for pump gear 20, 22 operation.

The flat plate 11 is made from preferably mild steel. Although, it 11 can be made from various other qualified metals. The plate 11 can be of hardened metal. In addition, the shape of the said plate 11 is preferably round to match the inner diameter of a bellhousing pocket 26. The outer diameter of said plate 11 is preferably 151.98 mm. The thickness of said plate 11 is preferably 18 gauge. However, it may be possible to have a thinner or thicker gauge.

The automatic transmission device 10 has a solid surface area 13 for complete support of the inner pump gear 20 and outer pump gear 22. The solid surface area 13 completely encloses the inner pump gear 20 and the outer pump gear 22 within the pump housing 28.

FIG. 1 shows a prior art 32 design. The prior art 32 has a thin rim 34 on which the inner pump gear 20 rotates. FIG. 5 shows the thin rim 34 with more detail. Additionally, the prior art 32 lacks total outer gear 22 support as is shown by the gaps 36 that are circled in FIG. 5. Additionally, prior art 32 lacks total containment of both gears 20, 22. As a result, FIG. 1, FIG. 3, and FIG. 5 shows prior art 32 as being a weaker design.

FIG. 6 shows the solid surface area 13 fully supports both pump gears 20, 22 as is indicated by the dotted lines. Furthermore, the dotted lines in FIG. 6 represents the hidden pump gears 20, 22. There are no gaps 36 or open areas. The pump gears 20, 22 are fully supported and contained. (In Figures that show a back of the automatic transmission device 10 and a back of the prior art device 32 where the pump gears 20, 22 are not visible (for example FIG. 5 and FIG. 6), the pump gears 20,22 are represented by dashed lines to facilitate understanding of the invention 10.)

Because of the solid surface area 13, the automatic transmission device 10 can be place into the bellhousing pocket 26 of a damaged bellhousing 24 to allow reuse of the damaged bellhousing 24.

As shown in FIG. 2, the automatic transmission device 10 has eleven holes 12, 14, 16, 18. Seven holes 12 are for allowing the bellhousing 24 to be attached to the pump housing 28. FIG. 13 and FIG. 14 shows partial and complete assembly. The seven pump bolt holes 12 are preferably 8.75 mm in diameter. They 12 are preferably round although they could be oval, square or other shapes. One hole is the front seal-drain back hole 14. It is also round and preferably 8.75 mm in diameter. The other two holes are the pump inlet and pump outlet holes 16. These holes 16 are preferably the same size and shape as the holes in the pump housing 28. However, these two holes 16 can have various shapes, restricted in size only by the solid surface area 13. The last hole is the center hole 18 of the automatic transmission device. It is for the operation of the pump gears 20, 22. It is preferably 0.20 mm in diameter.

Preferably the automatic transmission device 10 is made from metal although it may be made from hard chemically treated industrial plastics.

Preferably, the automatic transmission device 10 is used for reclaiming or reuseing a damaged bellhousing 24. However, It can be used to protect a good bellhousing 24 from damage if the rotating pump gears 20, 22 should break. Also, the device 10 can be used as a replacement surface of a badly worn bellhousing when place in the bellhousing pocket 26.

The invention will now be described in use, with reference to a preferred embodiment, in no way limiting a scope of the invention.

In use, a 722.9 automatic transmission is brought into a transmission shop to be repaired. When the automatic transmission is disassembled, it is discovered that the pump gears and the bellhousing on which the pump gears rotate are damage. Although, the pump gears are easily replaceable, the bellhousing is not. The user reaches for the automatic transmission device, places it into the bellhousing pocket, replaces the pump gears and reassembles the transmission.

As a result of the automatic transmission device, the additional savings to the customer is the cost of the bellhousing, about $600, for a Mercedes.

The embodiments describe above are provided by way of example only, and various other modifications will be apparent to persons skilled in the art without departing from the scope of the invention as defined in the appended claims. 

1. An automatic transmission device, comprising: a flat plate for placing inside a transmission bellhousing; a solid surface area that supplies support for both rotating pump gears and completely encloses said gears within the pump housing; and eleven holes, the device configured so that seven of the eleven holes are for pump mounting bolts, three of the eleven holes are for fluid passage and one of the eleven holes is for pump gear operation.
 2. An automatic transmission device as claimed in claim one, wherein there is provide a solid surface area that completely supports the inner and outer diameters of both pump gears.
 3. An automatic transmission device as claimed in claim two, wherein the solid surface area extends past the outer diameter of the outer pump gear. 